Original response revised for clarity:
There may well have been a difference of opinion between Kaman and Sikorsky at UTC, but there are many technical reasons for the choice of coaxial over intermesher. For a start the rotor dynamics of coaxial will be a small step from single rotor, whereas intermeshing introduces sideslip yaw coupling and possible roll yaw coupling. The coaxial aerodynamics are also likely to be more like single rotor. The other factor is that a coaxial rotor shaft assy was likely seen as being an easier development than seperate shafts.
Originally Posted by Dave Jackson
at the bottom of the text you have a column of photos and if you go to the Flettner fl282 v12, you have the notice:
"taxing on its own power was stricly forbidden..." it's not the only place where i saw this remark...I go on searching for explaination
Dave, this will be to avoid rotor strike, since fuselage is constrained to follow ground in taxi. It was more likely done as a precation, since the earlier FL265 actually crashed after a rotor strike. This config is only really suited to high effective hinge offset, and i would be interested to know how frequent rotor strikes are with two blade intermeshing designs.
Mart